Apparatus for dyeing hanks and the like



Aug. 4, 1925. 1,548,176 I. RO SINA APPARATUS FOR DYEING BANKS AND THE LIKE I Fina May 10, 1923 A I WIND/HIE] w W; 2% e1 Patented A11 4, 1925.

UNITED STATES PATENT OFFICE.

ILDEBRANDO ROSINA, or NOVARA, ITALY.

APPARATUS FOR nYEIne HANKS AND THE LIKE.

Application filed May 10,

' as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to apparatus for dyeing hanks and thelike and has for its object to provide improved apparatus of this character for effecting automatically the passage of the hanks through the liquid dye in the interior of the dyeing vat in such a manner as to cause every part of each hank to be successively immersed in and withdrawn from the dye.

The improved apparatus consists essentially of a frame'removably mounted at the top of the dyeing vat, this frame supporting a number of pairs of'short, transverse shafts, the shafts of each pair being arrangedcoaxial with one another on opposite sides of the frame and being rotated in the same direction by a longitudinally arranged driving mechanism operated con tinuously or intermittently by a suitable. motor. The inner ends of the shafts-of each pair are provided with cranks or arms the outer ends of which serve to;supp'ort a transverse bar extendin'g'across the vat fromone crank to the other of each pair, the transverse bars beingof prismatic, ribbed,- or angular cross-sectional form.

It will be evident that with this arrange ment each of the hanks, which are suspended from the transverse bars, is, in addition to being subjected as a whole to a circular dipping movement in the dyeing" liquid owing to the rotary movement of the bar and the frictional adhesion of the hank to the periphery of the bar, also subjected to a progressive'travel or creeping movement in the direction of the length of the hank.

The invention is-illustrated by way of example in the accompanying drawings, of

V which Figures 1, 2, and 3 are views of the whole apparatus n side elevation partly sectional,

1923. Serial No. 638,084.

in plan, and in front elevation partly sectional, respectively;

Figure at is a View in transverse section and in side elevation of one of the short shafts and the crank or arm mounted thereon for the support of the transverse bar,

Figure 5 being a similar view illustrating a modification;

Figure 6 shows various cross-sectional forms of the transverse bars employed.

Referring'now to the drawings, it will be seen that at the upperend of the dyeing vat 1, which is of ordinary construction,

there is arranged a rectangular frame constituted by two parts 2 preferably constructed of channel irons, connected together by cross-pieces 2. This'frame is removably attached to the top of the vat by means'oflloops3 provided with screws 4, the-loops 3 beingpivotally secured to rings 5 attached to the walls of the vat and being adapted to be engaged, by means of the screws 4, with downwardly curved lugs 6 secured to the cross-pieces of the frame.

Mounted in the vertical flanges of the channel elements 2 and suitably spaced apart are transverse bushings 7 arranged in pairs opposite to one another on the two parts2. In the interior of each bushing 7 is rotatably mounted a short shaft 8, allthese shafts being arranged to be rotated in the same direction and at the same speed by suitable driving mechanism. In the example shown in the drawing this driving mechanism is constituted by the two longitudinal counter "shafts 9 mounted on the outersides of the parts 2, by means of shaft brackets 10 andrprovided with a worm 11 for each of the shafts 8, the worm 11 intermeshing with a worm wheel 12 secured to the shaft 8 on the outside of the frame parts 2. The two counter shafts 9 are driven by a transverse shaft 13 rotatably supported on the exterior of one of the cross-pieces 2 of the frame by means of shaft brackets 14 secured-to the said cross piece, the transmission of rotary movement between the shafts 13 and 9 being effected for example by pairs of bevel gear wheels 15. The shaft 13 is arranged' to be driven either manually or from a suitable motor which may be, for example, an ordinary electric motor, either mounted on the frame or sepa rately therefrom. In the latter case the transmission to the shaft 13 may be effected in any suitable manner, preferably by means of a belt and pulley arrangement.

Each shaft 8 is provided at its inner end with a crank or arm 16 carrying asupporting device 17, in which is mounted one end of the transverse bar 18 for supporting the hanks 19; the rods 18 thus extend transversely across the vat, each barbeing carried by the supporting devices 17 of a pair of cranks 16 arranged opposite to one another.

The bars 18 may be of any suit-able type provided that their peripheries present longitudinal edges or ribs capable of engaging with the hanks in such a manner as to cause creeping or progressive longitudinal movement of the hank during the rotating movement of the cranks 16. In the constructional form shown in Figures 1 to 4 the bars 18 are shown as of triangular cross-section, but they may also be provided with ribs or be constituted by a T iron or by a flat strip as shown in section respectively at a, b, c, in Figure 6 so that their ends do not have to be fashioned to fit their recesses in the cranks.

In each case the supporting device 17 of the crank 16 is so formed as to correspond to the terminal section of the bar, so that when the latter is mounted in the supporting device it is held firmly therein and consequently rotates with the supporting device 17. Since the end of the bar 18 cannot generally be axially inserted to the interior of the supporting device 17 the latter is provided with an opening adapted to permit the introduction of the end of the bar, which when inserted is held in position in the device 17 by a suitable clamp 17 the clamp 17 being, for example, mounted on a hinge or otherwise (see Figure 1). Each of the supporting devices 17 is preferably provided with a collar 17 for preventing the strands of the hanks from slipping in a lateral direction and consequently getting entangled with the device 17. This collar could obviously equally well be provided on the bar 18 towards its extremities.

In Figure 5 there is shown a modification inwhich the supporting device 17 is rotatablymounted on the end of the crank 16 and is provided with a pinion 2O intermeshing with a pinion 21 attached to the frame 2 or to the fixed bushing 7. With this arrangement, during the rotation of the crank 16 the supporting device 17, to which is secured the end of the bar 18, in addition to rotating about the shaft 8, is also caused to rotate about its own axis. The gear teeth on the pinion 21 instead of being continuous over-the Whole circumference may extend only over predetermined portions of this circumference, and in this case the rotary movement of the supporting device 17 and consequently of the bar 18- about its own ads Will be effected intermittently.

The operation of the apparatus is as follows:

lVhen the longitudinal shafts 9 are rotated, all the cranks 16 rotate in the same direction and at the same speed, and the several bars 18 perform a rotary movement about the corresponding shafts 8. The hanks 19 supported by each bar are conse quently subject to a rising and falling movement in a circular path in the interior of the periphery of the bar, so that all parts of the hank are successively immersed in the bath of dyestuff. In the case of the modification shown in Figure 5, this creeping or progressive movement of the hank in the direction of its length is accelerate-d in a continuous or intermittent manner by the continuous or intermittent rotary movement to which the supporting device 17 is subjected;

lVith the apparatus above described there is consequently obtained, by mechanical means and in a more efficient manner than by the usual manual operation, the displacement of each hank as a whole and its creeping or progressive movement along its own axis in the interior of the bath of dyestuff which is necessary in order to obtain uniform dyeing.

It should here be noted that the removability of the frame 2, 2' for supporting all the bars 18 and their operating mechanism is very important, as it permits the whole frame to be transported with the hanks in position from the dyeing vat after releasing the loops 3, the lugs 6 serving to connect the frame to the crane or other device for raising and transport.

The direction of rotation of the shafts 8 may bemaintained constant or may be reversed fromtime to time and the speed of rotation of these shafts may also be varied. This can be effected by the interposition of a reversing and speed changing device in the transmission mechanism.

It will be evident that the invention is in no way limited to the arrangements above described and illustrated, but that, without departing from its essential principle the invention may be modified as desired in any respect which may be considered advantageous or necessary under practical conditions.

I claim:

1. Apparatus for dyeing hanks and the like, comprising a frame for removable mounting on a vat, counter shafts on said frame, cranks mounted in the frame in axially alined pairs, means on the crank directly operated by said shafts, and hank supporting rods supported by the pairs of cranks.

2. Apparatus for dyeing hanks and the like comprising a frame for removable mounting on a vat, cranks mounted in the frame in axially alined pairs, Worm Wheels.

on the cranks, counter shafts on opposite sides of the frame, worms on said shafts, each Worm engaging a Worm wheel and directly rotating its pertaining crank, and a bar supported in each crank pair.

3. Apparatus for dyeing hanks and the revolution.

4. Apparatus for dyeing hanks and the like, comprising a frame for removable mounting on a vat, cranks mounted in the frame in axially alined pairs, means to rotate the cranks, means on each crank to de-. tachably hold the end of a hank sup-porting bar and arranged for the radial insertion and removal of such bar and including a hinged latch to confine the end of the bar in the crank.

5. Apparatus for dyeing hanks and the like, comprising a frame for removable mounting on a vat, cranks journalled in said frame in axially alined pairs, means to rotate the cranks, each crank having in its end a triangular recess for holding the end of a bar and into Which the bar end is placed and removed radially, and a latch hinged to each crank and arranged to extend over said recess and hold the bar end therein.

6. Apparatus for dyeing hanks and the like, comprising a frame for removable mounting on a vat, cranks journalled in said frame in axially alined pairs, means to rotate the cranks simultaneously and shapes having flat faces carried by the pairs of cranks and radially removable therefrom.

In testimony that I claim the foregoing as my invention, I have signed my name.

ILDEBRANDO ROSINA. 

